Base | Representation |
---|---|
bin | 11110110001110000011… |
… | …100100101011100001011 |
3 | 21111012012201022010021020 |
4 | 132301300130211130023 |
5 | 234123020133414321 |
6 | 4255342234043523 |
7 | 305542634132010 |
oct | 36616034453413 |
9 | 7435181263236 |
10 | 2115010451211 |
11 | 745a75297069 |
12 | 2a1aa08795a3 |
13 | 1245a1b0bbb8 |
14 | 7451d295707 |
15 | 3a039de34c6 |
hex | 1ec7072570b |
2115010451211 has 32 divisors (see below), whose sum is σ = 3459199822848. Its totient is φ = 1121902617600.
The previous prime is 2115010451161. The next prime is 2115010451221. The reversal of 2115010451211 is 1121540105112.
It is not a de Polignac number, because 2115010451211 - 27 = 2115010451083 is a prime.
It is a super-3 number, since 3×21150104512113 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (2115010451221) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40552015 + ... + 40604136.
It is an arithmetic number, because the mean of its divisors is an integer number (108099994464).
Almost surely, 22115010451211 is an apocalyptic number.
2115010451211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
2115010451211 is a deficient number, since it is larger than the sum of its proper divisors (1344189371637).
2115010451211 is a wasteful number, since it uses less digits than its factorization.
2115010451211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 81156251.
The product of its (nonzero) digits is 400, while the sum is 24.
Adding to 2115010451211 its reverse (1121540105112), we get a palindrome (3236550556323).
The spelling of 2115010451211 in words is "two trillion, one hundred fifteen billion, ten million, four hundred fifty-one thousand, two hundred eleven".
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